Auto merge of #6667 - Manishearth:rustup, r=Manishearth

Rustup

Pulling in AST changes

changelog: none

8 files changed, 49 insertions, 30 deletions

diff --git a/.editorconfig b/.editorconfig
index a13173544d8..ec6e107d547 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -13,6 +13,8 @@ indent_style = space
 indent_size = 4
 
 [*.md]
+# double whitespace at end of line
+# denotes a line break in Markdown
 trim_trailing_whitespace = false
 
 [*.yml]
diff --git a/clippy_lints/src/doc.rs b/clippy_lints/src/doc.rs
index b3e3635c1c1..1348f7530f4 100644
--- a/clippy_lints/src/doc.rs
+++ b/clippy_lints/src/doc.rs
@@ -4,7 +4,7 @@ use crate::utils::{
 };
 use if_chain::if_chain;
 use itertools::Itertools;
-use rustc_ast::ast::{Async, AttrKind, Attribute, FnRetTy, ItemKind};
+use rustc_ast::ast::{Async, AttrKind, Attribute, FnKind, FnRetTy, ItemKind};
 use rustc_ast::token::CommentKind;
 use rustc_data_structures::fx::FxHashSet;
 use rustc_data_structures::sync::Lrc;
@@ -563,7 +563,7 @@ fn check_code(cx: &LateContext<'_>, text: &str, edition: Edition, span: Span) {
                             | ItemKind::ExternCrate(..)
                             | ItemKind::ForeignMod(..) => return false,
                             // We found a main function ...
-                            ItemKind::Fn(_, sig, _, Some(block)) if item.ident.name == sym::main => {
+                            ItemKind::Fn(box FnKind(_, sig, _, Some(block))) if item.ident.name == sym::main => {
                                 let is_async = matches!(sig.header.asyncness, Async::Yes { .. });
                                 let returns_nothing = match &sig.decl.output {
                                     FnRetTy::Default(..) => true,
diff --git a/clippy_lints/src/excessive_bools.rs b/clippy_lints/src/excessive_bools.rs
index 82ca4baacb7..6a85b57af07 100644
--- a/clippy_lints/src/excessive_bools.rs
+++ b/clippy_lints/src/excessive_bools.rs
@@ -1,5 +1,5 @@
 use crate::utils::{attr_by_name, in_macro, match_path_ast, span_lint_and_help};
-use rustc_ast::ast::{AssocItemKind, Extern, FnSig, Item, ItemKind, Ty, TyKind};
+use rustc_ast::ast::{AssocItemKind, Extern, FnKind, FnSig, ImplKind, Item, ItemKind, TraitKind, Ty, TyKind};
 use rustc_lint::{EarlyContext, EarlyLintPass};
 use rustc_session::{declare_tool_lint, impl_lint_pass};
 use rustc_span::Span;
@@ -159,17 +159,17 @@ impl EarlyLintPass for ExcessiveBools {
                     );
                 }
             },
-            ItemKind::Impl {
+            ItemKind::Impl(box ImplKind {
                 of_trait: None, items, ..
-            }
-            | ItemKind::Trait(_, _, _, _, items) => {
+            })
+            | ItemKind::Trait(box TraitKind(.., items)) => {
                 for item in items {
-                    if let AssocItemKind::Fn(_, fn_sig, _, _) = &item.kind {
+                    if let AssocItemKind::Fn(box FnKind(_, fn_sig, _, _)) = &item.kind {
                         self.check_fn_sig(cx, fn_sig, item.span);
                     }
                 }
             },
-            ItemKind::Fn(_, fn_sig, _, _) => self.check_fn_sig(cx, fn_sig, item.span),
+            ItemKind::Fn(box FnKind(_, fn_sig, _, _)) => self.check_fn_sig(cx, fn_sig, item.span),
             _ => (),
         }
     }
diff --git a/clippy_lints/src/non_expressive_names.rs b/clippy_lints/src/non_expressive_names.rs
index 855529378e6..7c74b316018 100644
--- a/clippy_lints/src/non_expressive_names.rs
+++ b/clippy_lints/src/non_expressive_names.rs
@@ -1,5 +1,7 @@
 use crate::utils::{span_lint, span_lint_and_then};
-use rustc_ast::ast::{Arm, AssocItem, AssocItemKind, Attribute, Block, FnDecl, Item, ItemKind, Local, Pat, PatKind};
+use rustc_ast::ast::{
+    Arm, AssocItem, AssocItemKind, Attribute, Block, FnDecl, FnKind, Item, ItemKind, Local, Pat, PatKind,
+};
 use rustc_ast::visit::{walk_block, walk_expr, walk_pat, Visitor};
 use rustc_lint::{EarlyContext, EarlyLintPass};
 use rustc_middle::lint::in_external_macro;
@@ -364,7 +366,7 @@ impl EarlyLintPass for NonExpressiveNames {
             return;
         }
 
-        if let ItemKind::Fn(_, ref sig, _, Some(ref blk)) = item.kind {
+        if let ItemKind::Fn(box FnKind(_, ref sig, _, Some(ref blk))) = item.kind {
             do_check(self, cx, &item.attrs, &sig.decl, blk);
         }
     }
@@ -374,7 +376,7 @@ impl EarlyLintPass for NonExpressiveNames {
             return;
         }
 
-        if let AssocItemKind::Fn(_, ref sig, _, Some(ref blk)) = item.kind {
+        if let AssocItemKind::Fn(box FnKind(_, ref sig, _, Some(ref blk))) = item.kind {
             do_check(self, cx, &item.attrs, &sig.decl, blk);
         }
     }
diff --git a/clippy_lints/src/utils/ast_utils.rs b/clippy_lints/src/utils/ast_utils.rs
index eac5d0aa3ee..44eb3968ae7 100644
--- a/clippy_lints/src/utils/ast_utils.rs
+++ b/clippy_lints/src/utils/ast_utils.rs
@@ -231,7 +231,7 @@ pub fn eq_item_kind(l: &ItemKind, r: &ItemKind) -> bool {
         (Use(l), Use(r)) => eq_use_tree(l, r),
         (Static(lt, lm, le), Static(rt, rm, re)) => lm == rm && eq_ty(lt, rt) && eq_expr_opt(le, re),
         (Const(ld, lt, le), Const(rd, rt, re)) => eq_defaultness(*ld, *rd) && eq_ty(lt, rt) && eq_expr_opt(le, re),
-        (Fn(ld, lf, lg, lb), Fn(rd, rf, rg, rb)) => {
+        (Fn(box FnKind(ld, lf, lg, lb)), Fn(box FnKind(rd, rf, rg, rb))) => {
             eq_defaultness(*ld, *rd) && eq_fn_sig(lf, rf) && eq_generics(lg, rg) && both(lb, rb, |l, r| eq_block(l, r))
         },
         (Mod(l), Mod(r)) => l.inline == r.inline && over(&l.items, &r.items, |l, r| eq_item(l, r, eq_item_kind)),
@@ -239,7 +239,7 @@ pub fn eq_item_kind(l: &ItemKind, r: &ItemKind) -> bool {
             both(&l.abi, &r.abi, |l, r| eq_str_lit(l, r))
                 && over(&l.items, &r.items, |l, r| eq_item(l, r, eq_foreign_item_kind))
         },
-        (TyAlias(ld, lg, lb, lt), TyAlias(rd, rg, rb, rt)) => {
+        (TyAlias(box TyAliasKind(ld, lg, lb, lt)), TyAlias(box TyAliasKind(rd, rg, rb, rt))) => {
             eq_defaultness(*ld, *rd)
                 && eq_generics(lg, rg)
                 && over(lb, rb, |l, r| eq_generic_bound(l, r))
@@ -251,7 +251,7 @@ pub fn eq_item_kind(l: &ItemKind, r: &ItemKind) -> bool {
         (Struct(lv, lg), Struct(rv, rg)) | (Union(lv, lg), Union(rv, rg)) => {
             eq_variant_data(lv, rv) && eq_generics(lg, rg)
         },
-        (Trait(la, lu, lg, lb, li), Trait(ra, ru, rg, rb, ri)) => {
+        (Trait(box TraitKind(la, lu, lg, lb, li)), Trait(box TraitKind(ra, ru, rg, rb, ri))) => {
             la == ra
                 && matches!(lu, Unsafe::No) == matches!(ru, Unsafe::No)
                 && eq_generics(lg, rg)
@@ -260,7 +260,7 @@ pub fn eq_item_kind(l: &ItemKind, r: &ItemKind) -> bool {
         },
         (TraitAlias(lg, lb), TraitAlias(rg, rb)) => eq_generics(lg, rg) && over(lb, rb, |l, r| eq_generic_bound(l, r)),
         (
-            Impl {
+            Impl(box ImplKind {
                 unsafety: lu,
                 polarity: lp,
                 defaultness: ld,
@@ -269,8 +269,8 @@ pub fn eq_item_kind(l: &ItemKind, r: &ItemKind) -> bool {
                 of_trait: lot,
                 self_ty: lst,
                 items: li,
-            },
-            Impl {
+            }),
+            Impl(box ImplKind {
                 unsafety: ru,
                 polarity: rp,
                 defaultness: rd,
@@ -279,7 +279,7 @@ pub fn eq_item_kind(l: &ItemKind, r: &ItemKind) -> bool {
                 of_trait: rot,
                 self_ty: rst,
                 items: ri,
-            },
+            }),
         ) => {
             matches!(lu, Unsafe::No) == matches!(ru, Unsafe::No)
                 && matches!(lp, ImplPolarity::Positive) == matches!(rp, ImplPolarity::Positive)
@@ -300,10 +300,10 @@ pub fn eq_foreign_item_kind(l: &ForeignItemKind, r: &ForeignItemKind) -> bool {
     use ForeignItemKind::*;
     match (l, r) {
         (Static(lt, lm, le), Static(rt, rm, re)) => lm == rm && eq_ty(lt, rt) && eq_expr_opt(le, re),
-        (Fn(ld, lf, lg, lb), Fn(rd, rf, rg, rb)) => {
+        (Fn(box FnKind(ld, lf, lg, lb)), Fn(box FnKind(rd, rf, rg, rb))) => {
             eq_defaultness(*ld, *rd) && eq_fn_sig(lf, rf) && eq_generics(lg, rg) && both(lb, rb, |l, r| eq_block(l, r))
         },
-        (TyAlias(ld, lg, lb, lt), TyAlias(rd, rg, rb, rt)) => {
+        (TyAlias(box TyAliasKind(ld, lg, lb, lt)), TyAlias(box TyAliasKind(rd, rg, rb, rt))) => {
             eq_defaultness(*ld, *rd)
                 && eq_generics(lg, rg)
                 && over(lb, rb, |l, r| eq_generic_bound(l, r))
@@ -318,10 +318,10 @@ pub fn eq_assoc_item_kind(l: &AssocItemKind, r: &AssocItemKind) -> bool {
     use AssocItemKind::*;
     match (l, r) {
         (Const(ld, lt, le), Const(rd, rt, re)) => eq_defaultness(*ld, *rd) && eq_ty(lt, rt) && eq_expr_opt(le, re),
-        (Fn(ld, lf, lg, lb), Fn(rd, rf, rg, rb)) => {
+        (Fn(box FnKind(ld, lf, lg, lb)), Fn(box FnKind(rd, rf, rg, rb))) => {
             eq_defaultness(*ld, *rd) && eq_fn_sig(lf, rf) && eq_generics(lg, rg) && both(lb, rb, |l, r| eq_block(l, r))
         },
-        (TyAlias(ld, lg, lb, lt), TyAlias(rd, rg, rb, rt)) => {
+        (TyAlias(box TyAliasKind(ld, lg, lb, lt)), TyAlias(box TyAliasKind(rd, rg, rb, rt))) => {
             eq_defaultness(*ld, *rd)
                 && eq_generics(lg, rg)
                 && over(lb, rb, |l, r| eq_generic_bound(l, r))
diff --git a/clippy_lints/src/write.rs b/clippy_lints/src/write.rs
index 6358104eeda..e40fdca6a99 100644
--- a/clippy_lints/src/write.rs
+++ b/clippy_lints/src/write.rs
@@ -3,7 +3,7 @@ use std::ops::Range;
 
 use crate::utils::{snippet_with_applicability, span_lint, span_lint_and_sugg, span_lint_and_then};
 use if_chain::if_chain;
-use rustc_ast::ast::{Expr, ExprKind, Item, ItemKind, LitKind, MacCall, StrLit, StrStyle};
+use rustc_ast::ast::{Expr, ExprKind, ImplKind, Item, ItemKind, LitKind, MacCall, StrLit, StrStyle};
 use rustc_ast::token;
 use rustc_ast::tokenstream::TokenStream;
 use rustc_errors::Applicability;
@@ -231,10 +231,10 @@ impl_lint_pass!(Write => [
 
 impl EarlyLintPass for Write {
     fn check_item(&mut self, _: &EarlyContext<'_>, item: &Item) {
-        if let ItemKind::Impl {
+        if let ItemKind::Impl(box ImplKind {
             of_trait: Some(trait_ref),
             ..
-        } = &item.kind
+        }) = &item.kind
         {
             let trait_name = trait_ref
                 .path
diff --git a/rust-toolchain b/rust-toolchain
index f55d55d7065..b617203bef6 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2021-01-30"
+channel = "nightly-2021-02-03"
 components = ["llvm-tools-preview", "rustc-dev", "rust-src", "rustfmt"]
diff --git a/tests/ui/panicking_macros.stderr b/tests/ui/panicking_macros.stderr
index 6028323a3c8..ffced49690e 100644
--- a/tests/ui/panicking_macros.stderr
+++ b/tests/ui/panicking_macros.stderr
@@ -11,16 +11,12 @@ error: `panic` should not be present in production code
    |
 LL |     panic!("message");
    |     ^^^^^^^^^^^^^^^^^^
-   |
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `panic` should not be present in production code
   --> $DIR/panicking_macros.rs:10:5
    |
 LL |     panic!("{} {}", "panic with", "multiple arguments");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `todo` should not be present in production code
   --> $DIR/panicking_macros.rs:16:5
@@ -29,18 +25,23 @@ LL |     todo!();
    |     ^^^^^^^^
    |
    = note: `-D clippy::todo` implied by `-D warnings`
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `todo` should not be present in production code
   --> $DIR/panicking_macros.rs:17:5
    |
 LL |     todo!("message");
    |     ^^^^^^^^^^^^^^^^^
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `todo` should not be present in production code
   --> $DIR/panicking_macros.rs:18:5
    |
 LL |     todo!("{} {}", "panic with", "multiple arguments");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `unimplemented` should not be present in production code
   --> $DIR/panicking_macros.rs:24:5
@@ -49,18 +50,23 @@ LL |     unimplemented!();
    |     ^^^^^^^^^^^^^^^^^
    |
    = note: `-D clippy::unimplemented` implied by `-D warnings`
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `unimplemented` should not be present in production code
   --> $DIR/panicking_macros.rs:25:5
    |
 LL |     unimplemented!("message");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `unimplemented` should not be present in production code
   --> $DIR/panicking_macros.rs:26:5
    |
 LL |     unimplemented!("{} {}", "panic with", "multiple arguments");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: usage of the `unreachable!` macro
   --> $DIR/panicking_macros.rs:32:5
@@ -69,6 +75,7 @@ LL |     unreachable!();
    |     ^^^^^^^^^^^^^^^
    |
    = note: `-D clippy::unreachable` implied by `-D warnings`
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: usage of the `unreachable!` macro
   --> $DIR/panicking_macros.rs:33:5
@@ -83,6 +90,8 @@ error: usage of the `unreachable!` macro
    |
 LL |     unreachable!("{} {}", "panic with", "multiple arguments");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `panic` should not be present in production code
   --> $DIR/panicking_macros.rs:40:5
@@ -95,18 +104,24 @@ error: `todo` should not be present in production code
    |
 LL |     todo!();
    |     ^^^^^^^^
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `unimplemented` should not be present in production code
   --> $DIR/panicking_macros.rs:42:5
    |
 LL |     unimplemented!();
    |     ^^^^^^^^^^^^^^^^^
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: usage of the `unreachable!` macro
   --> $DIR/panicking_macros.rs:43:5
    |
 LL |     unreachable!();
    |     ^^^^^^^^^^^^^^^
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 16 previous errors